Hello, This error triggers only with postfix and milter-regex with ipv6 connections.
warning: milter unix:/var/smfs/milter-regex.sock: can't read SMFIC_CONNECT reply packet header: Success postfix 2.8.3 relevant section: smtpd_milters = unix:/var/smfs/milter-regex.sock milter_default_action = accept milter_protocol = 6
